A number of academics, commentators, and groups argue that humans have so completely modified the Earth that concepts such as 'wilderness' or 'nature' have become meaningless, and that therefore there is no point in talking about 'preserving' wilderness or natural areas. The idea of 'nature', they say, is just a human cultural construct. Those advancing these ideas use different progressive-sounding labels, such as "pragmatic environmentalists" or "green postmodernism," but their message is that we should forget about wilderness conservation and just get on with the business of 'managing' the planet for human benefit. Not surprisingly, corporate and industry leaders have been jumping on the bandwagon.